A system or device for doing work, as an automobile or a jackhammer, together with its power source and auxiliary equipment.
机械系统用来工作的系统或装置，如汽车或手持式凿岩机，包括其动力源和辅助设备。
A system or device for doing work, as an automobile or a jackhammer, together with its power source and auxiliary equipment.
机械系统：用来工作的系统或装置，如汽车或手持式凿岩机，包括其动力源和辅助设备。
The generating unit is started, using auxiliary power from the start-up source.
发电机组采用来自于起动电源的厂用电来起动。
When the unit is ready to accept load, the auxiliary power system is transferred from the start-up to the unit source.
当机组准备带负荷时，厂用电系统从起动电源切换到机组电源。
When the unit is ready to accept load, the auxiliary power system is transferred from the start-up to the unit source.
当机组准备带负荷时，厂用电系统从起动电源切换到机组电源。
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